Plants
How do plants reproduce?
Asexually, and Sexually
What is terminal velocity?
It is the velocity at which you go where you stop accellerating.
Give an example of an environmental and a genetic variation.
The highly qualified judges will decide. If needed you shall argue for your case.
When you touch a metal spoon that's been sitting in a hot pot, it feels hot. This happens because heat is passed directly from one particle to the next through the solid material. What is this method of heat transfer called?
Conduction
Metals are typically shiny when freshly cut or polished. What scientific word describes this shiny appearance?
Lustrous
What is the female part of the plant reproductive system called?
The Carpel
Difference between velocity and speed
Velocity is a vector quantity.
It should have the pairs A - T and C - G, and it should have the structure named Double/Alpha Helix.
If you heat a pot of water on the stove, the warmer water rises and the cooler water sinks, creating a circular movement that spreads the heat throughout the liquid. What is this type of heat transfer known as?
Convection
Most metals can be hammered or rolled into thin sheets without breaking. What is this property called?
Malleable
What is photosynthesis?
This process, occurring in the chloroplasts of plant cells, uses carbon dioxide, water, and sunlight to produce glucose and oxygen.
Draw the velocity triangle.
It should have D on top V and T on the bottom.
What is the structure in the nucleus that carries genetic information in the form of DNA?
Chromosome
Even though space has no air or particles, heat from the Sun still reaches Earth. This is because heat travels in waves that don’t need any medium to pass through. What is this process called?
Radiation
When metals react with acids, they often produce a salt and a gas. What gas is released in this reaction?
Hydrogen
What are all the parts of a plant cell?
cell wall, cell membrane, cytoplasm, vacuole, nucleus, and chloroplasts
What is the resultant force in a situation where the falling force is 700 N and the air resistance is 500 N?
200N
In a Punnett square, two heterozygous parents (Bb) are crossed. What is the probability their child will be homozygous recessive?
25%
Two objects are placed in the sun — one is shiny and white, the other is dark and dull. After a while, one becomes noticeably hotter. Which one?
Dark
If you place magnesium into copper sulfate solution, a reaction occurs where X takes the place of Y. What kind of chemical reaction is this, and what takes the place of what?
What is light in photosynthesys?
A catalyst
Describe creatively what happens on the randon graph Peter will draw with his eyes closed!
We will decide
Define all of these: Gene, Allele, Dominant, Recessive, Phenotype, Genotype, Homozygus, Heterozygus, Hiploid and Diploid.
Gene: A part of the DNA coding for a certain characteristic. Allele: Variation of a gene. Dominant: The allele that will show. Recessive: The allele that does not show. Phenotype: Physical characteristics. Genotype: Genetic characteristics. Homozygus: Having two of the same alleles. Heterozygus: Having one dominant and one recessive allele. Hiploid: 23 chromosomes. Diploid: 23 pairs of chromosomes.
A vacuum flask (like a Thermos) is designed to keep hot drinks hot and cold drinks cold. It uses a shiny inner surface, a vacuum between layers, and insulating materials. Which form of heat transfer is the vacuum specifically preventing?
Conduction and Convection
Metals like aluminium are too reactive to extract from their ores using carbon. Instead, they are separated using a process that involves passing electricity through a molten compound. What is this process called?
Electrolysis